Consider that the half-life of polonium-210 is 140 days. what approximate daily percentage of decay does polonium-210 demonstrate? % (round to two : use the rule of 70 backwards by dividing by the half-life period instead of the rate.) what percentage of the original amount of polonium-210 would be left after 425 days of decay? % (round to two decimals.)

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

Which equation represents the function on the graph?

Formulate the indicated conclusion in nontechnical terms. be sure to address the original claim. the foundation chair for a hospital claims that the mean number of filled overnight beds is over 523, and she is therefore justified starting a funding campaign to add a wing to the hospital. assuming that a hypothesis test has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.